| Sudoku Tutorial | |
| Turbot Fish |
|
 |
A turbot fish is similar to a skyscraper and 2 string kite. The only difference is the shape. A turbot fish is a single candidate chain (9 in this example). The blue cells are the ends of the chain. Each end cell must be strongly linked to a yellow cell. The two yellow cells must be linked (weak or strong). This forces one of the blue cells to be a 9 (possibly both blue cells are 9's). This eliminates the slashed 9 in r6c9. Skyscrapers, 2 string kites, and turbot fish are all X chains. They just happen to have just three links in the chain. They are defined by the orientation of the strong links as follows: Skyscrapers - strong links are parallel (both are either rows or columns) 2 string kite - - strong links are perpendicular (one is in a row, one is in a column) Turbot fish - one of the strong links is in a box, the other is in a row or column |
Comments? Email me!